Howdy, Alexandra! Welcome to the Disney Parks Moms Panel and thanks for your question.
Congratulations on your growing family! I have seen lots of adorable gender reveals and baby announcements at the parks online on sites like Pinterest and on various blogs. So I understand the appeal of celebrating this magical news at the Disneyland Resort! While you can't request special character interactions like what you have described, you can still get creative with how you and your partner find out whether you are having a boy or a girl.
There is almost always at least one
PhotoPass photographer stationed at Sleeping Beauty Castle. If you let them know that you plan to do a gender reveal, they will be more than willing to capture the special moment for you. You can also find PhotoPass photographers throughout the parks by using the
Disneyland app. There are also photographers stationed at
Mickey's House and
Minnie's House in Mickey's Toontown if you wanted to have one of these characters in your photo. Again, just let the PhotoPass photographer and the Cast Member located at the meet and greet know that you plan to do a quick gender reveal.
If you want even more ideas, stop into a Guest Relations location in the parks and speak to a Cast Member. They may have some unique ideas to help you stage the perfect reveal.
Congratulations again and I hope you have a fantastic time at the Happiest Place on Earth!
-Linda